The Ford Mustang Boss 429 was first produced in 1969.
Engine: 429 cubic-inch V8 (7.0 L)
The "Boss 429" name comes from the 429-cubic-inch engine, a high-performance, NASCAR-derived big-block V8.
Factory-rated at 375 horsepower, though it was widely believed to produce more.
Production Numbers
Only 859 units were produced in 1969, making it one of the rarest Mustangs ever built.
Production Numbers
Only 859 units were produced in 1969, making it one of the rarest Mustangs ever built.
Purpose
Originally built to comply with NASCAR homologation rules, Ford had to produce a certain number of Boss 429 engines for the street to qualify for racing.
Purpose
Originally built to comply with NASCAR homologation rules, Ford had to produce a certain number of Boss 429 engines for the street to qualify for racing.
Transmission
The Boss 429 came with a 4-speed manual transmission.
Performance
Known for its raw power, the Boss 429 could achieve a 0-60 mph time of around 6.8 seconds and a top speed of approximately 118 mph.
Chassis & Suspension Modifications
To fit the massive engine, Ford contracted Kar Kraft to extensively modify the Mustang's front suspension and engine bay. This included widening the shock towers.
Exterior Features
The Boss 429 was visually distinctive, with a large functional hood scoop, front spoiler, and minimal badging.
Interior Features
Came with a Deluxe Interior package, including high-back bucket seats and an 8000 RPM tachometer.
Special Code
The car's engine bay was marked with a special KK number (Kar Kraft number), which identified it as a genuine Boss 429.
Colors
Available in limited exterior color options such as Raven Black, Wimbledon White, Royal Maroon, Black Jade, and Candy Apple Red.
Collectibility
Due to its low production numbers, NASCAR heritage, and high-performance engine, the Boss 429 is considered one of the most valuable and collectible muscle cars.
Price at Launch
The original price in 1969 was around $4,900, which was considered expensive at the time for a Mustang.
Current Value
Today, well-maintained Boss 429 Mustangs can fetch hundreds of thousands of dollars at auctions, with some rare models selling for over $500,000.